.container {
  width: 50%;
  margin: 0 auto;
}
.header {
  font-size: 24px;
  background-color: #ccc;
  height: 60px;
  line-height: 60px;
  text-align: center;
}
.add-box {
  text-align: center;
  padding: 10px;
}
.add-input {
  width: 90%;
  height: 30px;
  border: 1px solid #c9e3e8;
}
.add-input:focus {
  outline: 1px solid #c9e3e8;
  box-shadow: 0px 0px 5px 2px #b1effb;
}
.list-group {
  width: 100%;
  padding: 20px 40px;
  border-radius: 10px;
  border: 1px solid #aaa;
}
.list-group-item {
  padding: 10px 0;
}
.btn-danger {
  float: right;
}
